querystring parameters are not working in API

Question

I am trying to connect the Front-end(reactjs) with the asp net core API

Front-end

async getFilterData() {
       this.setState({ tableLoading: true });


       const   TitleFIlter = document.getElementById("TitleFIlter").value
       const   descriptionFilter = document.getElementById("DescriptionFilter").value
       const priceminFIlter = document.getElementById("PriceMin").value
       const pricemaxFIlter = document.getElementById("PriceMax").value
       console.log(" title =" + TitleFIlter);
       console.log("description = " + descriptionFilter);
       console.log(" PriceMin =" + priceminFIlter);
       console.log("PriceMax = " + pricemaxFIlter);

       const url = `api/upload/${TitleFIlter}/${descriptionFilter}/${priceminFIlter}/${pricemaxFIlter}`
       const response = await axios.get(url)
       const data = await response.data;
       this.setState({
           allproducts: data,
           tableLoading: false
       });
       console.log(data);
   }

 this is my backend(asp net core API):

HttpGet]
        [Route("{Title?}/{Description?}/{Pricemin?}/{Pricemax?}")]
        public async Task<List<Product>> GetFilter([FromQuery]
         string Title,
         string  Description,
            int PriceMin,
            int PriceMax
            )
        {
            IQueryable<Product> products = _context.products;


            if (!string.IsNullOrEmpty(Title))
                products = products.Where(x => x.Title.ToLower().Contains(Title.ToLower()));

            if (!string.IsNullOrEmpty(Description))
                products = products.Where(x => x.Description.ToLower().Contains(Description.ToLower()));

            if (PriceMin > 0)
                products = products.Where(x => x.Price >= PriceMin);

            if (PriceMax > 0)
                products = products.Where(x => x.Price <= PriceMax);

            return await products.ToListAsync();
        }

Anytime I dont fill in all the filter inputs I get a 404 error

How do i solve this